tests/ui/macros/meta-item-absolute-path.rs - rust-lang/rust - Git at Google

 //@ edition:2015
 #[derive(::Absolute)] //~ ERROR failed to resolve
                       //~| ERROR failed to resolve
 struct S;

 fn main() {}
	//@ edition:2015
	#[derive(::Absolute)] //~ ERROR failed to resolve
	//~\| ERROR failed to resolve
	struct S;

	fn main() {}